The head of Hong Kong’s prisons has rebuffed claims by democracy activist Joshua Wong Chi-fung that he was made to strip and squat to answer questions from guards while he was serving a six-month jail term this year.

Following his release from prison last month, Wong claimed he was stripped naked, forced to squat in front of a correctional officer and made to answer questions while in a crouched position.

Commissioner of Correctional Services Terence Lam Kwok-leung said the department did not require new prisoners to undergo such procedures.

He added that inmates could lodge a complaint with the department or speak with other officers at the scene if they felt they had been mistreated.